| 韩琳琳,任 理.应用农业生产系统模型分析冬小麦-夏玉米轮作体系的农田水氮利用效率I：模型参数的灵敏度分析与标定[J].水利学报,2011,42(9): |
| 应用农业生产系统模型分析冬小麦-夏玉米轮作体系的农田水氮利用效率I：模型参数的灵敏度分析与标定 |
| Analysis of water and nitrogen use efficiency of the winter wheat-summer maize rotation using agricultural production systems simulatorI. Parameter sensitivity analysis and calibration |
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| 中文关键词: 冬小麦-夏玉米轮作体系 水分利用效率 氮肥偏生产力 农业生产系统模型 灵敏度分析 参数标定 |
| 英文关键词: Winter wheat-summer maize rotation Water Use Efficiency Partial Factor Productivity of applied N Agricultural Production Systems Simulator Sensitivity analysis Parameter calibration |
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| 中文摘要: |
| 以采集的北京市海淀区东北旺试验站大量的田间实测数据为基础，对农业生产系统模型 （Agricultural Pro duction Systems Simulator，APSIM） 进行详细的参数灵敏度分析与标定，结果显示：标定模拟的土壤剖面体积 水量动态的精度较高，平均相对误差为13.41%；标定模拟的土壤剖面硝态氮浓度动态的精度较低，平均的相对误差为29.69%；标定模拟的冬小麦叶面积指数、生物量和产量的平均相对误差分别为36.49%、24.18%和32.31%；标定模拟的夏玉米叶面积指数、生物量和产量 |
| 英文摘要: |
| Detailed measurements of field experiments in Dongbeiwang Station，Beijing，were used to cali?brate the Agricultural Production Systems Simulator（APSIM） . Volumetric soil water content in the individual soil layers were well simulated，with a profile-averaged MRE=13.41%. In contrast to volumetric soil water content，the soil nitrate concentration in the individual soil layers were simulated not so well，with a profile-averaged MRE=29.69%. The simulated winter wheat LAI，above ground biomass and yield predictions were acceptable with MRE of 36.49%，24.18% and 32.31% res pectively. Summer maize LAI，above ground biomass and yield with MRE of 31.76%，35.84% and 26.44% respectively. The overall results were found to be acceptable. The calibrated model will be used for evaluation of long-term WUE and PFPN variation between different agronomic management. |
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